In this CL the OnFrame function is implemented. Bug: webrtc:8909 Change-Id: I68488a033e86eadd0b16d091faad14e9cda7cc36 Reviewed-on: https://webrtc-review.googlesource.com/64121 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Philip Eliasson <philipel@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22583}